<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
		<title>Testcase</title>
	</head>
	<body onload="document.getElementById('B').appendChild(document.getElementById('A'));">
		<div style="position: relative;">
			<math xmlns="http://www.w3.org/1998/Math/MathML">
				<mover>
					<mrow id="A"/>
					<mn id="B"/>
				</mover>
			</math>
		</div>
	</body>
</html>
